#20145: Hilbert series bug
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Reporter: stumpc5 | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.1
Component: commutative algebra | Resolution:
Keywords: Hilbert series, polynomial | Merged in:
ring | Reviewers:
Authors: | Work issues:
Report Upstream: Not yet reported upstream; | Commit:
Will do shortly. | Stopgaps:
Branch: |
Dependencies: |
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Changes (by dimpase):
* upstream: N/A => Not yet reported upstream; Will do shortly.
Comment:
Replying to [comment:7 stumpc5]:
> Anyway, it seems to be a bug in Singular, so I suggest to leave this
ticket open until that is fixed, and then add a doctest for checking...
>
> I would also appreciate if someone knowing how this Hilbert numerator is
computed in Singular would send a bug report there (or shows me how to
reproduce the bug in Singular).
I think you know that in the output of hilb(std(I)) (the part you omitted
and indicated by ...) is the numerator that should be divisible by the
appropriate power of t-1, but it is not.
As to writing up the corresponding Singular commands to show this... I can
do this for you, although I didn't touch it for 5+ years...
--
Ticket URL: <http://trac.sagemath.org/ticket/20145#comment:8>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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